97385502861 has 6 divisors (see below), whose sum is σ = 140667948590. Its totient is φ = 64923668568.

The previous prime is 97385502859. The next prime is 97385502869. The reversal of 97385502861 is 16820558379.

97385502861 is a `hidden beast` number, since 9 + 7 + 3 + 8 + 550 + 2 + 86 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 56133455625 + 41252047236 = 236925^2 + 203106^2 .

It is not a de Polignac number, because 97385502861 - 2¹ = 97385502859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97385502798 and 97385502807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97385502869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5410305706 + ... + 5410305723.

Almost surely, 2^97385502861 is an apocalyptic number.

It is an amenable number.

97385502861 is a deficient number, since it is larger than the sum of its proper divisors (43282445729).

97385502861 is a wasteful number, since it uses less digits than its factorization.

97385502861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10820611435 (or 10820611432 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 97385502861 in words is "ninety-seven billion, three hundred eighty-five million, five hundred two thousand, eight hundred sixty-one".